1892.] NATURAL SCIENCES OF PHILADELPHIA. 503 



Academy ; doubtless this supplemental collection will be received 

 in due time. Only a part of the Arctic collections has been thus 

 far classified and labeled, the present limitation of space in the 

 Academy's working rooms rendering the process of arrangement a 

 laborious one. 



Among other valuable additions to the department made during 

 the year are an extensive series of Tertiary fossils from the Atlantic 

 and Gulf borders of the United States, for which the Academy is 

 indebted to Mr. Joseph Willcox; a collection, comprised in 89 trays, 

 of sub-Carboniferous crinoids from the Burlington Group, purchased 

 by the Curators from Mr. F. L. Sarmiento ; and an interesting 

 series of Cambro-Silurian fossils, presented by the late Dr. J. P. 

 Lundy, from the region of Lake St. John, Canada. 



No relief to the crowded condition of the Academy's collections 

 in the department of invertebrate paleontology has thus far been 

 found possible, and probably no marked change in this direction 

 will be effected until the occupancy by the Academy of the new 

 building, which is now in course of erection. 



No lectures in this professorial department have been delivered 

 during the year, and the undersigned regrets his failure to finish the 

 preparation of the course which had been intended for the autumn 

 season, and upon which he hopes to enter during the coming month. 



Respectfully submitted, 

 Angelo Heilprin, 



Professor of Invertebrate Paleontology. 



REPORT OF THE PROFESSOR OF THE LOWER 



INVERTEBRATA. 



The Professor of the Lower Invertebrata respectfully reports that 

 during the past year he has delivered two lectures, one on " Green- 

 land," and one on " Death from a Zoological Point of View." 



The additions to the museum are noteworthy. They include 

 the Crustaceans and Echinoderms collected by the West Greenland 

 Expedition of 1891, together with twelve very fine specimens of 

 Antedon eschrichti, (a crinoid ), collected by the Peary Relief 

 Expedition of 1892 ; a collection of Sponges from the Mexican 

 Expedition of 1890, and sixteen jars of Echinoderms collected by 

 William J. Fox in Jamaica. 



